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https://mynavi.jp

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
73
GRADE
C
FIX
4
REVIEW
3
PASS
8
INFO
2

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
56
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
91
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

4.20 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

11.65 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

97 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.092

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

8.25 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

12.44 s

Page Load Progression

796 ms
1.6 s
2.4 s
3.2 s
4.0 s
4.8 s
5.6 s
6.4 s
Checks
17
8 PASS 3 REVIEW 4 FIX
F
Page Weight Budget
Action
13.3 MB transferred, 60 requests
FIX
13.3 MB transferred, 60 requests
Critical::
Page weighs 14.5 MB (13.3 MB transferred)
Warning::
Images are 12.8 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 12.8 MB
Info::
60 HTTP requests
Info::
Estimated 2.8 g CO2 per page load
13.3 MB / 2.4 MB budget
13.3 MB transferred
60 requests
2.8 g CO2 per page load
Images 12.8 MiB 96%
JavaScript 395.1 KiB 3%
CSS 68.6 KiB 1%
Other 30.5 KiB 0%
Other 15.5 KiB 0%
HTML 8.9 KiB 0%
Other 2.5 KiB 0%
Fonts 1.6 KiB 0%
0 2.4 MB 4.9 MB
Over budget

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

Source: web.dev

D
Third-Party Impact
Action
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (13.3 MiB of 13.3 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
JS Execution Cost
Action
2192ms total JS execution
FIX
2192ms total JS execution
Warning::
https://www.mynavi.jp/: 1018ms CPU time
Warning::
Unattributable: 467ms CPU time
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-WNZ...: 259ms CPU time
Info::
https://cdn-au.onetrust.com/scripttemplates/6.31.0...: 226ms CPU time
Info::
https://www.mynavi.jp/wp-content/themes/site/asset...: 150ms CPU time
Warning::
Third-party scripts: 2192ms (100% of total)

Main Thread Breakdown

Other 30% Script Evaluation 29% Style & Layout 27% Script Parsing & Compilation 5% Rendering 5% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
https://www.mynavi.jp/1018ms23ms2ms3rd
Unattributable467ms57ms0ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-WNZ67J259ms201ms37ms3rd
https://cdn-au.onetrust.com/scripttemplates/6.31.0/otBannerSdk.js226ms155ms28ms3rd
https://www.mynavi.jp/wp-content/themes/site/assets/js/jquery.min.js?ver=3.3.1150ms127ms12ms3rd
https://connect.facebook.net/ja_JP/bundle/sdk.js/73ms54ms18ms3rd
D
Page Weight Inventory
Action
60 resources · 13.3 MB · 191 KB savings available
FIX
60 resources · 13.3 MB · 191 KB savings available
Warning::
Page weight 12.3 MB over 1MB target
Got: 13.3 MB Expected: ≤ 1 MB
Info::
~191 KB of savings available
Warning::
59 third-party resources (100% of weight)
Info::
13 resources over 200KB
60 resources · 13.3 MiB · 59 third-party 12.3 MiB over 1MB target
Image 96% · 12.8 MiB
JavaScript 3% · 408.9 KiB
CSS 1% · 73.1 KiB
Other 0% · 14.9 KiB
Document 0% · 9.3 KiB
Font 0% · 1.6 KiB

~190.9 KiB of savings available

Remove unused JavaScript: 190.9 KiB
C
Image Optimization
Action
33 images, 0 KB saveable
REVIEW
33 images, 0 KB saveable
Warning::
https://www.mynavi.jp/wp-content/themes/site/asset... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.mynavi.jp/wp-content/themes/site/asset... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://dugf25wejf35p.cloudfront.net/wp-content/up... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
33 images 12.8 MB
0 oversized -0 KB
33 legacy format
3 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

C
JS Bundles
Action
12 scripts, 191 KB unused
REVIEW
12 scripts, 191 KB unused
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-WNZ...: 75 KB unused (54%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://connect.facebook.net/ja_JP/bundle/sdk.js/: 55 KB unused (70%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn-au.onetrust.com/scripttemplates/6.31.0...: 40 KB unused (50%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.mynavi.jp/wp-content/themes/site/asset...: 22 KB unused (57%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 191 KB
191 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtm.js?id=GTM-WNZ67J139 KB75 KB (54%)✓3rd
https://connect.facebook.net/ja_JP/bundle/sdk.js/78 KB55 KB (70%)✓3rd
https://cdn-au.onetrust.com/scripttemplates/6.31.0/otBannerSdk.js79 KB40 KB (50%)✓3rd
https://www.mynavi.jp/wp-content/themes/site/assets/js/plugin/swiper/swiper-bundle.min.js?ver=6.9.439 KB22 KB (57%)✓3rd
https://www.mynavi.jp/wp-content/themes/site/assets/js/jquery.min.js?ver=3.3.130 KB—✓3rd
https://www.mynavi.jp/wp-content/themes/site/assets/js/plugin/slick/slick.min.js?ver=6.9.410 KB—✓3rd
https://www.mynavi.jp/wp-content/themes/site/assets/js/plugin/fitie-master/fitie.js?ver=6.9.41 KB—✓3rd
https://www.mynavi.jp/wp-content/themes/site/assets/js/script.js?ver=202604220636354 KB—✓3rd
https://cdn-au.onetrust.com/scripttemplates/otSDKStub.js9 KB—✓3rd
https://cdn-au.onetrust.com/consent/5646b044-8952-4657-902b-e6b0000d2c03/5646b044-8952-4657-902b-e6b0000d2c03.json2 KB—✓3rd

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+
Font Loading
1 fonts (2 KB)
PASS
1 fonts (2 KB)
Info::
1 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

1

2 KB total

Render-blocking

0

of 1

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s FCP 4.2 s LCP 11.7 sdata:application/font-woff;charset=utf-8;base64, d09GRgABAAAAAAZgABAAAAAADAAAAAAAAAAAAAAAAAAAAAAAAA…font-woff;charset=utf-8... data:application/font-woff;charset=utf-8;base64, d09GRgABAAAAAAZgABAAAAAADAAAAAAAAAAAAAAAAAAAAAAAAA… — 1.6 KiB — 116 ms — font-display: swap
font-woff;charset=utf-8... woff swap
Size 2 KB
Load time 116 ms
Start 3.2 s
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
Optimization checklist
  • Preload critical fonts (priority=high)
  • Use woff2 format for all fonts
  • Set font-display to swap, optional, or fallback
  • Subset large fonts (≤100 KB each)
A+
Resource Caching
All resources properly cached
PASS
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A+
Resource Hints
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
A
HTTP Caching
max-age=3600 (1 hour)
PASS
max-age=3600 (1 hour)
Info::
Cache-Control header is set
Got: max-age=3600
Info::
Effective TTL: 1 hour (max-age=3600)
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

max-age=3600

DirectiveValueMeaning
max-age3600Cache for 1 hour
Effective TTL: 3600 seconds
Network Waterfall
60 requests over 5644ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s FCP 4.2 s LCP 11.7 shttps://mynavi.jp// https://mynavi.jp/ — 301 — 389 B — 996 ms — h2https://www.mynavi.jp/www.mynavi.jp/ https://www.mynavi.jp/ — 200 — 8.9 KiB — 1.2 s — h2https://www.googletagmanager.com/gtm.js?id=GTM-WNZ67Jwww.googletagmanager.com/gtm.js?id=... https://www.googletagmanager.com/gtm.js?id=GTM-WNZ67J — 200 — 139.0 KiB — 150 ms — h2https://fonts.googleapis.com/css?family=Noto+Sans+JP&ver=6.9.4fonts.googleapis.com/css?family=Not... https://fonts.googleapis.com/css?family=Noto+Sans+JP&ver=6.9.4 — 200 — 30.2 KiB — 118 ms — h2https://www.mynavi.jp/wp-content/themes/site/assets/js/plugin/slick/slick.css?ver=6.9.4www.mynavi.jp/wp-content/themes/sit... https://www.mynavi.jp/wp-content/themes/site/assets/js/plugin/slick/slick.css?ver=6.9.4 — 200 — 1015 B — 682 ms — h2https://www.mynavi.jp/wp-content/themes/site/assets/js/plugin/swiper/swiper-bundle.min.css?ver=6.9.4www.mynavi.jp/wp-content/themes/sit... https://www.mynavi.jp/wp-content/themes/site/assets/js/plugin/swiper/swiper-bundle.min.css?ver=6.9.4 — 200 — 5.2 KiB — 670 ms — h2https://www.mynavi.jp/wp-content/themes/site/assets/css/style.css?ver=20260422063635www.mynavi.jp/wp-content/themes/sit... https://www.mynavi.jp/wp-content/themes/site/assets/css/style.css?ver=20260422063635 — 200 — 20.4 KiB — 878 ms — h2https://www.mynavi.jp/wp-content/themes/site/assets/css/custom.css?ver=20260422063635www.mynavi.jp/wp-content/themes/sit... https://www.mynavi.jp/wp-content/themes/site/assets/css/custom.css?ver=20260422063635 — 200 — 9.3 KiB — 248 ms — h2https://www.mynavi.jp/wp-content/themes/site/assets/css/page-top.css?ver=20260422063635www.mynavi.jp/wp-content/themes/sit... https://www.mynavi.jp/wp-content/themes/site/assets/css/page-top.css?ver=20260422063635 — 200 — 2.0 KiB — 668 ms — h2https://www.mynavi.jp/wp-content/themes/site/assets/css/dummy.css?ver=6.9.4www.mynavi.jp/wp-content/themes/sit... https://www.mynavi.jp/wp-content/themes/site/assets/css/dummy.css?ver=6.9.4 — 200 — 734 B — 667 ms — h2https://www.mynavi.jp/wp-content/themes/site/assets/js/jquery.min.js?ver=3.3.1www.mynavi.jp/wp-content/themes/sit... https://www.mynavi.jp/wp-content/themes/site/assets/js/jquery.min.js?ver=3.3.1 — 200 — 30.1 KiB — 893 ms — h2https://www.mynavi.jp/wp-content/themes/site/assets/img/common/log_main.pngwww.mynavi.jp/wp-content/themes/sit... https://www.mynavi.jp/wp-content/themes/site/assets/img/common/log_main.png — 200 — 12.8 KiB — 250 ms — h2https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/logo-naviwill.pngdugf25wejf35p.cloudfront.net/wp-con... https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/logo-naviwill.png — 200 — 7.1 KiB — 27 ms — h2https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/miraihekimito.jpgdugf25wejf35p.cloudfront.net/wp-con... https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/miraihekimito.jpg — 200 — 10.5 KiB — 71 ms — h2https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/HP%E3%82%B5%E3%83%A0%E3%83%8D%E3%82%A4%E3%83%ABPC%E7%89%88.pngdugf25wejf35p.cloudfront.net/wp-con... https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/HP%E3%82%B5%E3%83%A0%E3%83%8D%E3%82%A4%E3%83%ABPC%E7%89%88.png — 200 — 1.6 MiB — 744 ms — h2https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/%E3%82%B5%E3%83%A0%E3%83%8D%E3%82%A4%E3%83%AB%E3%82%B9%E3%83%9E%E3%83%9B-4.pngdugf25wejf35p.cloudfront.net/wp-con... https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/%E3%82%B5%E3%83%A0%E3%83%8D%E3%82%A4%E3%83%AB%E3%82%B9%E3%83%9E%E3%83%9B-4.png — 200 — 1.3 MiB — 148 ms — h2https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/kv-3.jpgdugf25wejf35p.cloudfront.net/wp-con... https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/kv-3.jpg — 200 — 157.9 KiB — 37 ms — h2https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/kv-3_sp.jpgdugf25wejf35p.cloudfront.net/wp-con... https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/kv-3_sp.jpg — 200 — 459.1 KiB — 40 ms — h2https://www.mynavi.jp/wp-content/themes/site/assets/img/common/dummy-12x9.pngwww.mynavi.jp/wp-content/themes/sit... https://www.mynavi.jp/wp-content/themes/site/assets/img/common/dummy-12x9.png — 200 — 1.3 KiB — 679 ms — h2https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2026/03/39993_%E3%80%8CMynavi-Will-%E3%80%8D%E3%82%B5%E3%83%A0%E3%83%8D%E3%82%A4%E3%83%AB%E4%BD%9C%E6%88%90-1-768x432.pngdugf25wejf35p.cloudfront.net/wp-con... https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2026/03/39993_%E3%80%8CMynavi-Will-%E3%80%8D%E3%82%B5%E3%83%A0%E3%83%8D%E3%82%A4%E3%83%AB%E4%BD%9C%E6%88%90-1-768x432.png — 200 — 381.4 KiB — 751 ms — h2https://www.mynavi.jp/wp-content/themes/site/assets/img/common/privacy.pngwww.mynavi.jp/wp-content/themes/sit... https://www.mynavi.jp/wp-content/themes/site/assets/img/common/privacy.png — 200 — 158.6 KiB — 876 ms — h2https://www.mynavi.jp/wp-content/themes/site/assets/img/common/ico_twitter.pngwww.mynavi.jp/wp-content/themes/sit... https://www.mynavi.jp/wp-content/themes/site/assets/img/common/ico_twitter.png — 200 — 18.2 KiB — 457 ms — h2data:application/font-woff;charset=utf-8;base64, d09GRgABAAAAAAZgABAAAAAADAAAAAAAAAAAAAAAAAAAAAAAAA…data:application/font-woff;charset=... data:application/font-woff;charset=utf-8;base64, d09GRgABAAAAAAZgABAAAAAADAAAAAAAAAAAAAAAAAAAAAAAAA… — 200 — 1.6 KiB — 116 ms — datahttps://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/mynavi_1636%C3%97920.pngdugf25wejf35p.cloudfront.net/wp-con... https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/mynavi_1636%C3%97920.png — 200 — 2.1 MiB — 184 ms — h2https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/mynavi_750%C3%97900.pngdugf25wejf35p.cloudfront.net/wp-con... https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/mynavi_750%C3%97900.png — 200 — 3.2 MiB — 214 ms — h2https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/kv-2.jpgdugf25wejf35p.cloudfront.net/wp-con... https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/kv-2.jpg — 200 — 175.5 KiB — 1.4 s — h2https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/kv-2_sp.jpgdugf25wejf35p.cloudfront.net/wp-con... https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/kv-2_sp.jpg — 200 — 643.3 KiB — 148 ms — h2https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2025/04/logo_will.pngdugf25wejf35p.cloudfront.net/wp-con... https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2025/04/logo_will.png — 200 — 38.4 KiB — 31 ms — h2https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2026/01/39993_%E3%80%8CMynavi-Will-%E3%80%8D%E3%82%B5%E3%83%A0%E3%83%8D%E3%82%A4%E3%83%AB%E4%BD%9C%E6%88%90-1-768x432.pngdugf25wejf35p.cloudfront.net/wp-con... https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2026/01/39993_%E3%80%8CMynavi-Will-%E3%80%8D%E3%82%B5%E3%83%A0%E3%83%8D%E3%82%A4%E3%83%AB%E4%BD%9C%E6%88%90-1-768x432.png — 200 — 438.9 KiB — 744 ms — h2https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2025/11/39993_%E3%80%8CMynavi-Will-%E3%80%8D%E3%82%B5%E3%83%A0%E3%83%8D%E3%82%A4%E3%83%AB%E4%BD%9C%E6%88%90-768x432.pngdugf25wejf35p.cloudfront.net/wp-con... https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2025/11/39993_%E3%80%8CMynavi-Will-%E3%80%8D%E3%82%B5%E3%83%A0%E3%83%8D%E3%82%A4%E3%83%AB%E4%BD%9C%E6%88%90-768x432.png — 200 — 368.9 KiB — 752 ms — h2
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s FCP 4.2 s LCP 11.7 shttps://mynavi.jp// https://mynavi.jp/ — 301 — 389 B — 996 ms — h2https://www.mynavi.jp/www.mynavi.jp/ https://www.mynavi.jp/ — 200 — 8.9 KiB — 1.2 s — h2https://www.googletagmanager.com/gtm.js?id=GTM-WNZ67Jwww.googletagmanager.com/gtm.js?id=... https://www.googletagmanager.com/gtm.js?id=GTM-WNZ67J — 200 — 139.0 KiB — 150 ms — h2https://fonts.googleapis.com/css?family=Noto+Sans+JP&ver=6.9.4fonts.googleapis.com/css?family=Not... https://fonts.googleapis.com/css?family=Noto+Sans+JP&ver=6.9.4 — 200 — 30.2 KiB — 118 ms — h2https://www.mynavi.jp/wp-content/themes/site/assets/js/plugin/slick/slick.css?ver=6.9.4www.mynavi.jp/wp-content/themes/sit... https://www.mynavi.jp/wp-content/themes/site/assets/js/plugin/slick/slick.css?ver=6.9.4 — 200 — 1015 B — 682 ms — h2https://www.mynavi.jp/wp-content/themes/site/assets/js/plugin/swiper/swiper-bundle.min.css?ver=6.9.4www.mynavi.jp/wp-content/themes/sit... https://www.mynavi.jp/wp-content/themes/site/assets/js/plugin/swiper/swiper-bundle.min.css?ver=6.9.4 — 200 — 5.2 KiB — 670 ms — h2https://www.mynavi.jp/wp-content/themes/site/assets/css/style.css?ver=20260422063635www.mynavi.jp/wp-content/themes/sit... https://www.mynavi.jp/wp-content/themes/site/assets/css/style.css?ver=20260422063635 — 200 — 20.4 KiB — 878 ms — h2https://www.mynavi.jp/wp-content/themes/site/assets/css/custom.css?ver=20260422063635www.mynavi.jp/wp-content/themes/sit... https://www.mynavi.jp/wp-content/themes/site/assets/css/custom.css?ver=20260422063635 — 200 — 9.3 KiB — 248 ms — h2https://www.mynavi.jp/wp-content/themes/site/assets/css/page-top.css?ver=20260422063635www.mynavi.jp/wp-content/themes/sit... https://www.mynavi.jp/wp-content/themes/site/assets/css/page-top.css?ver=20260422063635 — 200 — 2.0 KiB — 668 ms — h2https://www.mynavi.jp/wp-content/themes/site/assets/css/dummy.css?ver=6.9.4www.mynavi.jp/wp-content/themes/sit... https://www.mynavi.jp/wp-content/themes/site/assets/css/dummy.css?ver=6.9.4 — 200 — 734 B — 667 ms — h2https://www.mynavi.jp/wp-content/themes/site/assets/js/jquery.min.js?ver=3.3.1www.mynavi.jp/wp-content/themes/sit... https://www.mynavi.jp/wp-content/themes/site/assets/js/jquery.min.js?ver=3.3.1 — 200 — 30.1 KiB — 893 ms — h2https://www.mynavi.jp/wp-content/themes/site/assets/img/common/log_main.pngwww.mynavi.jp/wp-content/themes/sit... https://www.mynavi.jp/wp-content/themes/site/assets/img/common/log_main.png — 200 — 12.8 KiB — 250 ms — h2https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/logo-naviwill.pngdugf25wejf35p.cloudfront.net/wp-con... https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/logo-naviwill.png — 200 — 7.1 KiB — 27 ms — h2https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/miraihekimito.jpgdugf25wejf35p.cloudfront.net/wp-con... https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/miraihekimito.jpg — 200 — 10.5 KiB — 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https://www.mynavi.jp/wp-content/themes/site/assets/img/common/privacy.png — 200 — 158.6 KiB — 876 ms — h2https://www.mynavi.jp/wp-content/themes/site/assets/img/common/ico_twitter.pngwww.mynavi.jp/wp-content/themes/sit... https://www.mynavi.jp/wp-content/themes/site/assets/img/common/ico_twitter.png — 200 — 18.2 KiB — 457 ms — h2data:application/font-woff;charset=utf-8;base64, d09GRgABAAAAAAZgABAAAAAADAAAAAAAAAAAAAAAAAAAAAAAAA…data:application/font-woff;charset=... data:application/font-woff;charset=utf-8;base64, d09GRgABAAAAAAZgABAAAAAADAAAAAAAAAAAAAAAAAAAAAAAAA… — 200 — 1.6 KiB — 116 ms — datahttps://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/mynavi_1636%C3%97920.pngdugf25wejf35p.cloudfront.net/wp-con... https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/mynavi_1636%C3%97920.png — 200 — 2.1 MiB — 184 ms — h2https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2023/07/mynavi_750%C3%97900.pngdugf25wejf35p.cloudfront.net/wp-con... 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https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2020/08/img_about_service_sp.jpg — 200 — 76.7 KiB — 37 ms — h2https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2020/09/img_about_sustainability_pc.jpgdugf25wejf35p.cloudfront.net/wp-con... https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2020/09/img_about_sustainability_pc.jpg — 200 — 368.6 KiB — 733 ms — h2https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2020/09/img_about_sustainability_sp.jpgdugf25wejf35p.cloudfront.net/wp-con... https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2020/09/img_about_sustainability_sp.jpg — 200 — 116.9 KiB — 147 ms — h2https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2020/08/img_about_recruit_pc.jpgdugf25wejf35p.cloudfront.net/wp-con... https://dugf25wejf35p.cloudfront.net/wp-content/uploads/2020/08/img_about_recruit_pc.jpg — 200 — 211.5 KiB — 49 ms — 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h2https://www.mynavi.jp/wp-content/themes/site/assets/js/plugin/fitie-master/fitie.js?ver=6.9.4www.mynavi.jp/wp-content/themes/sit... https://www.mynavi.jp/wp-content/themes/site/assets/js/plugin/fitie-master/fitie.js?ver=6.9.4 — 200 — 1.3 KiB — 670 ms — h2https://www.mynavi.jp/wp-content/themes/site/assets/js/script.js?ver=20260422063635www.mynavi.jp/wp-content/themes/sit... https://www.mynavi.jp/wp-content/themes/site/assets/js/script.js?ver=20260422063635 — 200 — 4.0 KiB — 246 ms — h2https://cdn-au.onetrust.com/scripttemplates/otSDKStub.jscdn-au.onetrust.com/scripttemplates... https://cdn-au.onetrust.com/scripttemplates/otSDKStub.js — 200 — 9.1 KiB — 107 ms — h2https://www.mynavi.jp/wp-content/themes/site/assets/img/common/favicon.icowww.mynavi.jp/wp-content/themes/sit... https://www.mynavi.jp/wp-content/themes/site/assets/img/common/favicon.ico — 200 — 15.1 KiB — 248 ms — h2https://cdn-au.onetrust.com/consent/5646b044-8952-4657-902b-e6b0000d2c03/5646b044-8952-4657-902b-e6b0000d2c03.jsoncdn-au.onetrust.com/consent/5646b04... https://cdn-au.onetrust.com/consent/5646b044-8952-4657-902b-e6b0000d2c03/5646b044-8952-4657-902b-e6b0000d2c03.json — 200 — 2.3 KiB — 83 ms — h2https://geolocation.onetrust.com/cookieconsentpub/v1/geo/locationgeolocation.onetrust.com/cookiecons... https://geolocation.onetrust.com/cookieconsentpub/v1/geo/location — 200 — 213 B — 38 ms — h2https://cdn-au.onetrust.com/scripttemplates/6.31.0/otBannerSdk.jscdn-au.onetrust.com/scripttemplates... https://cdn-au.onetrust.com/scripttemplates/6.31.0/otBannerSdk.js — 200 — 79.3 KiB — 53 ms — h2https://cdn-au.onetrust.com/consent/5646b044-8952-4657-902b-e6b0000d2c03/49829633-f96b-440b-8115-4a4aba167a4e/en.jsoncdn-au.onetrust.com/consent/5646b04... https://cdn-au.onetrust.com/consent/5646b044-8952-4657-902b-e6b0000d2c03/49829633-f96b-440b-8115-4a4aba167a4e/en.json — 200 — 11.4 KiB — 43 ms — 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— h2https://connect.facebook.net/ja_JP/bundle/sdk.js/connect.facebook.net/ja_JP/bundle/s... https://connect.facebook.net/ja_JP/bundle/sdk.js/ — 200 — 77.9 KiB — 53 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
100% of JavaScript execution is third-party
First-party Third-party 2192ms · 335KB · ¥3029/mo
www.mynavi.jp
Other
Costly
Execution 1018ms
Transfer 9 KB
Monthly Cost ¥1407/mo
Unattributable
Other
Costly
Execution 467ms
Transfer 0 KB
Monthly Cost ¥645/mo
Google Tag Manager
Tag Manager
Costly
Execution 259ms
Transfer 139 KB
Unused 54%
Monthly Cost ¥357/mo
cdn-au.onetrust.com
Other
Costly
Execution 226ms
Transfer 79 KB
Unused 50%
Monthly Cost ¥312/mo
www.mynavi.jp
Other
Costly
Execution 150ms
Transfer 30 KB
Monthly Cost ¥207/mo
Facebook Pixel
Advertising
Costly
Execution 73ms
Transfer 78 KB
Unused 70%
Monthly Cost ¥101/mo

These scripts may cost more than they're worth

  • www.mynavi.jp adds 1018ms and costs ~¥1407/month
  • Unattributable adds 467ms and costs ~¥645/month
  • Google Tag Manager adds 259ms and costs ~¥357/month
  • cdn-au.onetrust.com adds 226ms and costs ~¥312/month
  • www.mynavi.jp adds 150ms and costs ~¥207/month
  • Facebook Pixel adds 73ms and costs ~¥101/month

100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.

Why this matters

When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.

Learn more ▾

Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.

Source: web.dev

www.mynavi.jp takes 1018ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

Unattributable takes 467ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

Google Tag Manager takes 259ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

54% of Google Tag Manager's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

cdn-au.onetrust.com takes 226ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

50% of cdn-au.onetrust.com's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

www.mynavi.jp takes 150ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

Facebook Pixel takes 73ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

70% of Facebook Pixel's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

How third-party costs are calculated

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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